{"type":"https:\/\/mailchimp.com\/developer\/marketing\/docs\/errors\/","title":"Invalid Resource","status":400,"detail":"The resource submitted could not be validated. For field-specific details, see the 'errors' array.","instance":"6af6c5cf-c1e4-86d8-048e-f03a0fa69178","errors":[{"field":"email_address","message":"This value should not be blank."}]}